Shinehah wrote:
Time Machine won't back up. I get a message saying that it cannot take a snapshot because there is not enough free space on the drive, when there is definitely plenty of space. I have tried with two different drives. When I first had the problem, I was able to use the second drive, which was a new drive to work. Then it stopped working with the second drive as well. Both drives work with my new Mac Pro.
What should I do?
Which drive is one referring to makes a difference.
If referring to External Drive OK.
But the message might be referring to the Internal Drive. The Time Machine Backup needs to make a Snapshot on the Internal Drive before it will transfers that SnapShot to the External Drive.
In Terminal \tmutil listlocalsnapshots /
The Terminal will show a list of local snapshots with names
What is “Other” storage on a Mac, and how can I clean it out?
Free up storage space on your Mac
OmniDiskSweeper safe to use
See used and available storage space on your Mac